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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.

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प्रश्न

Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.

एका वाक्यात उत्तर
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उत्तर

The product obtained when ketones react with 1,2-diol in presence of dry HCl is known as cyclic ketal.

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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Very Short Answer Questions

संबंधित प्रश्‍न

Benzaldehyde does NOT show positive test with ______.


_____________ reaction is used to synthesize straight alkyl substituted benzenes.


The product formed after reaction between benzaldehyde and methyl magnesium iodide followed by acid hydrolysis is ____________.


Which of the following gives red precipitate with Fehling's solution?


\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]

Reaction is called ____________.


Fehling solution is ____________.


Which of the following will give positive iodoform test?


The first oxidation product of secondary alcohols is ____________.


Which of the following does NOT give yellow precipitate when reacted with (NaOH + I2) mixture?


The formation of cyanohydrin from acetone is an example of ____________.


Predict the product Z in the following series of reactions.

\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]


Which of the following represents the correct order of acidity in the given compounds.


In which case, chiral carbon is not generated by reaction with HCN.


Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation

Reason: The aldehydic (−CHO) group is meta directing.


Identify A, B, C and D.

\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]


How will you convert benzaldehyde into the following compound?

Benzophenone


How propanal is converted into propane.


Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.


Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Give two examples which undergo Wolf-Kishner reduction.


How are the following compound obtained from alkyne?

Acetaldehyde


Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.




Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


What is the action of the following regent on propanal?

Sodium Bisulphite


How will you prepare Acetic anhydride from acetic acid.


Nitration of the compound is carried out; this compound gives a red-orange ppt. with 2,4-DNP, this compound undergoes the Cannizzaro reaction but not aldol, then possible product due to nitration is:


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